Binder folder attachment for sewing machines



R. J. BOSER ETAL BINDER FOLDER ATTACHMENT FOR SEWING MACHINES Filed Dec.18, 1963 6 Sheets-Sheet 1 5 HT 3 a /w" t; 4 1 15 INVENTORS .55 52RON/9L0 J .BUSER .Zz'g. 5..

BY EQGfNf L L/E-SCHLER Aug. 17, 1965 R. J. BOSER ETAL 3,200,779

BINDER FOLDER ATTACHMENT FOR SEWING MACHINES Filed Dec. 18, 1963 6Sheets-Sheet 2 Aug. 17, 1965 R. J. BOSER ETAL 3,200,779

BINDER FOLDER ATTACHMENT FOR SEWING MACHINES Filed Dec. 18, 1963 6Sheets-Sheet 5 RONALD W2e Y EUGE/Vf 4. NfJCHAER A7TURNEYE,

Aug. 17, 1965 R. J. BOSER ETAL 3,200,779

BINDER FOLDER ATTACHMENT FOR SEWING MACHINES Filed Dec. 18, 1963 6Sheets-Sheet 4 #0 Mix M a: A

' INVENTORS RON/7L0 J. 50851? EUGENE L WESCHLER 1 ATTDHVD S.

Aug. 17, 1965 R. J. BOSER ETAL 3,200,779

BINDER FOLDER ATTACHMENT FOR SEWING MACHINES Filed Dec. 18, 1963 6Sheets-Sheet 5 rowan T SUPPLY SLIDER Mom INVENTOR. RON/1L0 J 5065/? ByEUGENE L. HE-SCH IE'R TTURN .5.

7, 1 65' R. J. BOSER Em. 3,200,779

BINDER FOLDER ATTACHMENT FOR SEWING MACHINES Filed Dec. 18, 1963 6Sheets-Sheet 6 ATZ / I10 V0115 J INVENTORS RONALD J- 3065/? [l/Gf/Vf L.NE-S'CWZER United States Patent 3,290,779 BINDER FOLDER ATTACHMENT FORSEWING MACHINES Ronald 5. Essex, 261-49 Langston Ava, Glen Oaks,

'N.Y., and Eugene L. Weschler, 288 Bel-Air Drive,

Massapequa, N.Y.

Filed Dec. 18, 1963, Ser. No. 331,570 Claims. (Cl. 112-152) Thisinvention relates to sewing machine attachments, and more particularlyconcerns an attachment assembly for automatically forming flat tape toform tubing, for guiding the tubing as it is sewn to fabric, and forcutting the tubing after a length of tubing has been sewn to the fabric.

In use of the invention, a flat tape is fed to the attachment assemblywhich has a scroll portion to turn and fold the tape to form tubing. Atthe same time, another fiat tape may be fed to the attachment assemblyfor enclosure in the tubing as a stiffener, thickener or reinforcement.The tubing is cut by an associated cutter to leave a free end. In theattachment assembly, the free end of the tubing is folded transversely.The attachment has a guide portion located under the needles of thesewing machine so that the folded end of the tubing can be sewn to anunderlying fabric which is drawn through the machine. As the tubing issewn to the underlying fabric and advances with the fabric, the flattape or tapes are continuously passed through the scroll portion of theattachment and folded to tubular form. When sewing of a length of tubingto the fabric is completed the tubing is cut to leave the free end forstarting another cycle of operation.

It is therefore one object of the invention to provide an attachmentassembly for a sewing machine for contina uously receiving and passingflat tape therethrough, the assembly including a scroll portion forturning and folding the flat tape to form tubing, and means for foldingtransversely and turning rearwardly a free end of the tubing.

Another object is to provide an attachment assembly as described whereinthe transverse folding means includes an electrically operated plunger.

A further object is to provide an attachment assembly as described withan associated electrically operated cutter for severing the tubing.

Still another object is to provide an assembly as described with anautomatic, cyclically operated electrical circuit for actuating thetransverse folding means and cutter, the circuit being controllable byan operator of the sewing machine.

For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawings, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

FIG. 1 is a perspective view of an attachment assembly embodying theinvention mounted on a sewing machine.

FIG. 2 is an enlarged perspective view of parts of the attachmentassembly and table of the sewing machine.

FIG. 3 is a top plan view of parts of the attachment assembly, otherparts being broken away.

FIGS. 4-6 are plan views similar to a part of FIG. 3

showing the assembly at different stages of operation thereof.

FIG. 7 is an enlarged, fragmentary sectional view taken on line 77 ofFIG. 4.

FIG. 8 is an enlarged, fragmentary sectional view taken on line 3-8 ofFIG. 5.

FIG. 9 is an enlarged perspective view of parts of the attachmentassembly showing a stage of operation thereof.

FIG. 10 is a sectional View taken on line 1010 of FIG. 9.

FIG. 11 is an enlarged sectional view taken on line 11-11 of FIG. 6.

FIG. 12 is a view similar to FIG. 11 showing a subsequent stage ofoperation of the assembly.

FIG. 13 is a top plan view of a slider mechanism forming part of theassembly.

FIG. 14 is a bottom plan view of the slider mechanism of FIG. 13.

FIG. 15 is an end view of the slider mechanism taken on line 15-15 ofFIG. 13.

FIG. 16 is an enlarged fragmentary sectional view taken on line 1616 ofFIG. 15.

FIG. 17 is an enlarged fragmentary sectional view taken on line 1717 ofFIG. 14.

FIG. 18 is an exploded perspective view of parts of a gear assembly usedin the slider mechanism of FIGS. 13-17.

FIG. 19 is a fragmentary enlarged perspective view of cloth tubing asformed in the attachment assembly.

FIG. 20 is a fragmentary perspective view in an inverted position oftubing as attached to a piece of fabric by an attachment assemblyembodying the invention.

FIG. 21 is a bottom plan view of tubing attached to a piece of fabric,parts being broken away.

FIG. 22 is a schematic diagram of parts of an electric circuit and someassociated mechanical parts employed in the invention.

FIG. 23 is a wiring diagram including the electric circuit of FIG. 22,for use with the attachment assembly.

Referring to the drawings, there is shown in FIGS. 1-12 a scroll andguide mechanism 25 forming part of the assembly. This mechanism includesa rectangular base plate 26 to which is secured by screws 27 anelongated tubular double scroll 28 of a known type; see FIG. 9. At itsentrance end, the scroll has a tapered end portion 30 with a wide openend 32 into which a fiat tape T is passed. The upper wall 33 of the endportion 30 has a transverse slot 34 into which can be passed a narrowtape Twhich may serve as a filler or core for the tubing T" which passesout of the narrow other end 35 of the scroll. A longitudinal slot 36 inupper wall 33 just beyond slot 34 permits tapes T and T to be engaged bya tool for manually advancing the tapes into the scroll.

Secured to the upper central portion 38 of the scroll is end 39 of athin pressure plate 40. The plate is formed with a notch 42 at its freeend 43 to receive a folded free end TT of tubing T". Plate 49 isflexible and overlays a fiat finger 44 formed of a thin strip of metal.Finger 44 has one end -44 secured by welding or the like to scrollportion 38 just inwardly of end 39 of plate and spaced slightlytherefrom. The outer free end 43 of plate 40 normally overlays andpresses down on finger 44. The outer free end 44" of finger 44 extendsbeyond end 43 of plate 40 and is formed with notches 45. The folded endTT of tubing T overlays end 44" of finger 44 and 3 underlays the end 43of plate 4'11 during operation of the assembly as will be described.

A plate lifter 48 in the form of a narrow metal plate is secured at oneend by a hinge 49 and screws 59 to base plate 26. The plate lifter 48has a curved end 51 turned upwardly toward tapered end portion 40 ofplate 49.

The mechanism 25 is mounted for use on table 52 of the sewing machine Mat the forward end or edge E of the table. Tape guide plate 63 withdiagonal slots 53, 53" may be mounted on edge E. Slide plate 54, bedplate 55, and dog plate 56 with feed dog 57 form conventional parts ofthe sewing machine. A plate 58 with cutout 59 to receive plate 40 issecured to the bed plate 55. The foot 62 of the sewing machine has twoholes 63 through which reciprocate two vertical needles 64 carried byreciprocating shaft 65 on the head 66 of the machine. End 32 of scroll28 located just inside of table edge E.

The machine M is provided with a needle positioner assembly P operatedby a knee switch lever d9 under con trol of the operator of the machinefor positioning the needles in an elevated poston to clear the presserfoot 62. The needle positioner forms no part of the present inventionbut is used during operation thereof. A suitable needle positioner maybe provided as described in our copending application 315,822, filedOctober 14, 1963, and entitled Automatic Needle Positioner for SewingMachine. The needle positioner elevates shaft es in response toactuation of lever 53, by turning shaft 69 on which the beltdrivenpulley 741 is mounted. Shaft 69 is operatively connected to shaft 65carrying needles d4.

lust inwardly of dog plate 56 are two stationary cutter plates or blades71, 72 spaced apart to define a slot 74. A movable cutter blade 75carried by a support 76 is disposed to enter slot 74 for cutting tubingT which extends over the slot and blades 71, 72 during operation of theattachment assembly. The cutter support 76 is movably carried on head 66at the rear thereof and is actuated by a solenoid which lowers support76 and blade 75 during operation of the assembly to cut tubing T". Theassembly includes a slider mechanism 11111 having horizontal, parallelbars 78, 79 located rearwardly of the cutter blade 71. At their rearends, the bars 78, 79 are secured at their rear ends by screws 81) tomovable rack gears 82, 84, respectively. The bars 78, 79 are removedfrom the rack gears 82, 84 (FIGS. 13-15 but are indicated by dottedlines therein. The rack gears have steps 85 extending through slots 86,87 in the table 62; see FIGS. 1 and 2. The steps 85 also extend throughslots 88, 89 formed in a base plate 911 for the slider mechanism 101 Therack gears 82, 34 have laterally extending flanges 91 engaged in grooves94 formed in the underside of plate 91). The teeth 96 of the rack gearsare engaged with spur gears 97, 98 carried on stub shafts 99 journaledin speed reducing bearing assemblies 102, 1114. Pairs of motors 1116,1118 and 109, 1111 have shafts 111 associated with the respectivebearing assemblies to drive the respective gears 97, 93.

FIGS. 14-18 show details of the gear mechanism. It will be noted thatgears 97, 9% have teeth 112 extending only part way around the peripheryof each gear. Each of gears 97, 93 is secured on stub shaft 99 by ascrew 114 screwed into the end of the shaft and bearing on a spacerplate or washer 115 fitted in recess 116 in the outer side of the gear.A clutch and pressure plate 118 is provided on shaft 99. This plate hasa conical, diametrally slotted sleeve 119 which receives shaft 99.Conical coil spring 129 fits on sleeve 119, and a locking pin 122extends diametrally through a hole 124 in shaft 99 and through slots 125in sleeve 119. By this arrangement, a slip clutch coupling is providedbetween shaft 99 and its associated gear 97 or 98.

The bar 78 is aligned with the upturned end 51 of plate lifter 48 andraises this end of lifter 48 when the bar 78 is advanced forwardly underthe lifter. The bar 79 is aligned with finger 44 and is slightlyelevated above the finger to 4 turn end TT of tubing T" over the end 44of the finger when the bar 79 is advanced forwardly.

In FIGS. 19, 20 and 21 are shown tubing T as formed in scroll 28 of theassembly. The tubing T" encloses tape core T which extendslongitudinally in tubing T". It will be noted that the tubing has twolayers L1 and L2 overlapping tape T while a single layer L3 of thetubing underlays the tape T. The end TT of the tubing and core is foldedover outer layer L1 and is sewn in place on fabric F by two lines ofstitching S. In FIG. 9, the tubing is shown prior to stitching. in FIGS.10, 11 and 12, the tuhing T is shown as having a single layeredconstruction in order to simplify the drawings.

in FlG. 22 is shown schematically a circuit 151) which may be employedin the electrical system forming part of the attachment assembly. Thiscircuit includes a solenoid 152 having a plunger 154 to which thesupport 7 6 for blade is attached. When the solenoid is energized theplunger advances so that blade 75 can enter slot 74 between fixed blades71, 72 to cut tubing T.

Rack gear 32 is shown engaged with gear 97 driven in one direction bymotor 196 and in an opposite direction by motor 198. Rack gear 84 isengaged with gear 98 which is driven in one direction by motor 199 andin opposite direction by motor 119. A timing device is providedincluding a motor 168 driving an electrically conductive arm 169 aroundan insulation plate 179. On this plate are circumferentially spacedarcuate fixed contacts 171-175 contacted in turn by arm 169.

Contact 171 is connected to solenoid 168. Contact 172 is connected tomotor 1%. Contact 173 is connected to motor 1119. Contact 174 isconnected to motor 1118. Contact 175 is connected to motor 110. Arm 169is connected to contact 177 and switch 189. This contact is alsoconnected to motor 168. Contact 179 of switch 180 is connected to apower supply 190. Plunger 154 is retracted by a spring 181 when thesolenoid is deenergized. One terminal of each motor, the solenoid 152and power supply 191? are connected in common to ground. The switch 181has a shorting bar 183 which closes contacts 177, 179 when the button184 is pressed. The switch 180 is closed by moving the knee lever 186shown in FIG. 1, to the right.

In operating the apparatus described above, the operator inserts tape Tthrough slot 53' of guide member 53 and inserts tape T' through slot53". Then the tapes are threaded through open end 32 of scroll 28 andslot 34- in the upper side 33 of scroll 28. The curved side walls effectan overlapping of the lateral edges of the tape T as the tapes arepushed through the scroll. The tubing T" formed in the scroll extendsoutwardly of the narrow end 35 of the scroll past end 44' of finger 44.

By moving lever 63 to the right, the switch 192 in circuit with needleposition P is closed and the needles 64 are elevated above the presserfoot 62. Suppose now that the operator moves knee lever 186 to the rightto close switch 189. The motor 168 will be energized and solenoid 152will first :be energized as arm 169 rotates around to first contact 171.The blade 75 will be advanced down- Wardly to cut the free end of tubingT" at the slot 74 a predetermined distance from finger 44. Then theblade 75 will retract as arm 169 leaves contact 171 leaving tubing endTT projecting beyond finger 44. When arm 169 reaches contact 172, motor1% will be energized and the gear 97 will be rotated to drive rack gear82 and bar 78 forwardly. The forward end of bar 78 will contact theunderside of end 51 of plate lifter 48 as shown in FIG. 8 and will pivotthe lifter upwardly to elevate the end 43 of plate 411 from the end 44"of finger 44. As arm 169 leaves contact 172 motor 1% stops and the bar78 remains in its forwardly extended position. Then arm 169 reachescontact 173 and motor 1119 is energized to turn gear 98 and move gear 84forwardly with bar 79. The forward end 79' of this bar is notched toengage the free end TT of tubing T" as indicated in FIG. 9 and FIG. 10.

5. As the bar 79 moves forward it turns the end TT over the notched end44" of finger 44 and pushes this end of the tubing underneath theforward end 43 of plate 4d as shown in FIG. 11. Then arm 169 leavescontact 173 to stop motor 109 and reaches contact 174. This energizesmotor 108 and gear 82 with bar 78 are retracted to release lifter 48 andlower plate 40. Then arm 159 leaves contact 174 to stop motor 108 andreaches contact 175. Motor 110 is energized to retract arm 79 leavingthe free end TT of tubing T" engaged between the end of plate 43 end theend 44" of finger 44 as shown in FIG. 12. A hem with an edge or looped bight B of the tubing end TT is located at the notched end of finger 44.This completes the operating cycle of the attachment assembly.

A piece of fabric F may now be placed down on the table of the machineand moved under presser foot 62 where it will overlay the edge B of hemend TT of the tubing as shown in FIG. 12. The operator can now pivot themotor control pedal PP shown in FIG. 1 which operates the motor drive ofthe sewing machine M to reciprocate needles 64. The needles will passthrough hole 57 in feed dog 57 and through notches 45 of finger 44 to:sew two lines of stitching S shown in FIG. 21. The end T of the tubingwill be engaged between the body of the tubing and the underside of thefabric which is shown in an inverted position in FIGS. and 21. Thefabric will be drawn forwardly along with the tubing by operation of thefeed dog 57 in conventional manner.

When sewing is completed, the operator will operate lever 68 to positionthe needles 64 in elevated position clear of presser foot 62. The rearend TT" of the tubing will extend beyond the fabric F as shown in FIG.21. By actuation of lever 186 a new cycle of operation of the attachmentassembly is initiated with blade 75 advancing to cut the end TT' of thetubing, releasing the sewn fabric and attached length of tubing, andleaving a free end TT to be folded under plate in the manner describedabove.-

FIG. 23 shows a wiring diagram of an electrical system 200 whichincludes circuit components described in connection With FIG. 22. Partscorresponding to those of circuit 150 of FIG. 22 are identicallynumbered. The power supply line 2% is connected to a transformer 2%which has an 8 volts output. All components are in circuit with aterminal board 2434 having terminals 2 95. The cutter solenoid 152 isconnected to the timer assembly 2% in circuit with the knee-operatedswitch 180 and motor assembly 21f). The needle positioner motor 212,foot lift switch 214, needle positioner relay 2.15, and foot liftlatching relay 218 are all in circuit with the power supply.

The apparatus described makes possible forming of tubing from fiat tapeand attachment of the tubing to garments and fabrics at very high speed.Once the kneeoperated switch 180 is actuated the cutting of the tubingand folding of the tubing end in a loop proceeds automatically. Theattachment is readily installed in association with a conventionalsewing machine. It is rugged in construction and capable of long,trouble-free service.

While we have illustrated and described the preferred embodiments of ourinvention, it is to be understood that we do not limit ourselves to theprecise constructions herein disclosed and that various changes andmodifications may be made within the scope of the invention as definedin the appended claims.

Having thus described our invention, What we claim as new, and desire tosecure by United States Letters Patent 182 1. A sewing machineattachment assembly for feeding tape to a sewing position and folding anend of the tape at said sewing position, comprising:

a support mountable near said sewing position on the machine;

a tubular member open at both ends for passing tape therethrough, saidmember being secured to said support;

- a flat finger secured at one end thereof to said tubular member andextending at its other end beyond one end of the tubular member forengaging a folded free end of the tape;

a pressure plate secured at one end thereof to the tubular member andover said finger, and having a movable free other end overlaying saidfinger and spaced inwardly of said other end of the finger to engage thefree end of the tape when folded over said other end of the finger;

a lifter member secured at one end to said support and having a movableother end disposed under said pressure plate for lifting said other endof the pressure plate off of the finger to enable insertion of the freeend of the tape between said pressure plate and finger;

another support mountable near said sewing position of the machine;

a pair of parallel bars slidably carried by said other support, one ofsaid :bars being alignable with said lifter member to lift the liftermember when said one bar is advanced, the other of said bars beingalignable with said finger to enter between the finger and ressure platefor inserting the free end of the tape therebetween when said other baris advanced; and means for cyclically advancing said one bar to liftsaid lifter member and in turn lift said pressure plate, advancing theother bar to insert the free end of the tape between the finger andlifted pressure plate, retract the one bar from the lifter member, andretract the other bar from the finger and pressure plate, whereby thefree end of the tape is held engaged between the finger and pres-sureplate, said free end of the tape being looped around the other end ofthe finger to form a hem so that an edge of the hem is exposed forsewing at said sewing position.

2. A sewing machine attachment assembly for feeding tape to a sewingposition, cutting said tape transversely to leave a free end thereof,and folding said free end of the tape transversely to form a hem forsewing at said sewing position, comprising:

a support mountable near said sewing position on the machine;

a tubular member open at both ends for passing the tape therethrough,said member being secured to said support;

cutter means movably disposed near said tubular member for cutting thetape transversely to leave a predetermined length of tape extendingbeyond said tubular member to define said free end of the tape;

a flat finger secured at one end thereof to said tubular member andextending at its other end beyond one end of the tubular member forsupporting the free end of the tape when folded over the said other endof the finger;

a pressure plate secured at one end thereof to the tubular member andover said finger, and having a movable free other end overlaying saidfinger and spaced inwardly of said other end of the finger to engage thefree end of the tape when folded over said other end of the finger;

and a lifter member secured at one end to said support and having amovable other end disposed under said pressure plate for lifting saidother end of the pressure plate off of the finger to enable insertion ofthe free end of the tape between said pressure plate and finger.

3. A sewing machine attachment assembly for feeding tape to a sewingposition, cutting said tape transversely to leave a free end thereof,and folding said free end of the tape transversely to form a hem forsewing at said sewing position, comprising:

a support mountable near said sewing position on the machine;

.a tubular member open at both ends for passing the tape therethrough,said member being secured to said support;

cutter means movably disposed near said tubular memher for cutting thetape transversely to leave a predetermined length of tape extendingbeyond said tubular member to define said free end of the tape;

a fiat finger secured at one end thereof to said tubular member andextending at its other end beyond one end of the tubular member forsupporting the free end of the tape when folded over the said other endof the finger;

a lifter member secured at one end to said support and having a movableother end disposed under said pressure plate for lifting said other endof the pressure plate oif of the finger to enable insertion of the freeend of the tape between said pressure plate and finger;

another support mountable near said sewing position of the machine;

a pair of parallel bars slidably carried by said other support, one ofsaid bars being alignable with said lifter member to lift the liftermember when said one bar is advanced, the other of said bars beingalignable with said finger to enter between the finger and pressureplate for inserting the free end of the tape therebetween when saidother bar is advanced;

and means for cyclically advancing said one bar to lift said liftermember and in turn lift said pressure plate, advancing the other bar toinsert the free end of the tape between the finger and lifted pressureplate, retract the one bar from the lifter member, and retract the otherbar from the finger and pressure plate, whereby the free end of the tapeis held engaged between the finger and pressure plate, said free end ofthe tape being looped around the other end of the finger to form a hemso that an edge of the hem is exposed for sewing at said sewing postion.

v 4. A sewing machine attachment assembly for feeding tape to a sewingposition, cutting said tape transversely to leave a free end thereof,and folding said free end of the tape transversely to form a hem forsewing at said sewing position, comprising:

a support mountable near said sewing position on the machine;

a tubular member open at both ends for passing the tape therethrough,said member being secured to said support;

cutter means movably disposed near said tubular member for cutting thetape transversely to leave a predetremined length of tape extendingbeyond said tubular member to define said free end of the tape;

a fiat finger secured at one end thereof to said tubular member andextending at its other end beyond one end of the tubular member forsupporting the free end of the tape when folded over the said other endof the finger;

a lifter member secured at one end to said support and having a movableother end disposed under said pressure plate for lifting said other endof the pressure plate off of the finger to enable insertion of the freeend of the tape betwen said pressure plate and finger;

another support mountable near said sewing position of the machine;

a pair of parallel bars slidably carried by said other support, one ofsaid bars being alignable with said lifter member to lift the liftermember when said one bar is advanced, the other of said bars beingalignable with said finger to enter between the finger and pressureplate for inserting the free end of the tape therebetween when saidother bar is advanced;

and means for cyclically and in turn: advancing said cutter means to cutthe tape and leave said free end, retracting said cutter means,advancing said one bar to lift said lifter member and in turn lift saidpressure plate, advancing said other bar to insert the free end of thetape between the finger and lifted pressure plate, retract the one barfrom the lifter member, and retract the other bar from the finger andpressure plate, whereby the free end of the tape is held engaged betweenthe finger and pressure plate, said free end of the tape being thenlooped around the other end of the finger to form a hem so that an edgeof the hem is exposed for sewing at sewing position.

5. A sewing machine attachment assembly according to claim 4, whereinsaid tubular member includes a scroll for forming said tape into atubing while passing through said tubular member.

6. A sewing machine attachment assembly according to claim 4, whereinsaid tubular member includes a scroll for forming said tape into atubing while passing through said tubular member, and further includes acentral passage for passing another tape therethrough for enclosure bysaid tubing While the two tapes pass through said tubular member.

7. A sewing'machine attachment assembly for feeding tape to a sewingposition and folding an end of the tape at said sewing position,comprising:

a support mountable near said sewing position on the machine;

a tubular member open at both ends for passing tape therethrough, saidmember being secured to said support;

a fiat finger secured at one end thereof to said tubular member andextending at its other end beyond one end of the tubular member forengaging a folded free end of the tape;

a pressure plate secured at one end thereof to the tubular member andover said finger, and having a movable free other end overlaying saidfinger and spaced inwardly of said other end of the finger to engage thefree end of the tape when folded over said other end of the finger;

- and a lifter member secured at one end to said support and having amovable other end disposed under said pressure plate for lifting saidother end of the pressure plate off of the finger to enable insertion ofthe free end of the tape between said pressure plate and finger;

said tubular member including a scroll for forming said tape into atubing while passing through said tubular member, and further includinga central passage for passing another tape therethrough for enclosure bysaid tubing while the two tapes pass through said tubular member.

8. A sewing machine attachment assembly according to claim ll, whereinthe last-named means comprises:

to claim 2, wherein the last-named means comprises:

motor means;

gear means operatively and parallel bars;

timer means in circuit with said motor means for cyclically activatingsaid motor means;

and switch means in circuit with 'said timer means for initiating andterminating energization of said timer means.

lltl. A sewing machine attachment assembly according connecting saidmotor means to claim 4, wherein the last-named means comprises:

solenoid means for advancing and retracting the cutter means;

motor means;

gear means operatively connecting said motor means and parallel bars;

9 10 timer means in circuit with said solenoid means and 790,560 5/05 DeNike 112-152 X motor means for cyclically activating said solenoid1,024,316 4/12 De Voe 112-147 means and motor means when said timermeans is 1,065,941 7/13 Holtzmann 112152 X energized; 1,201,423 10/16Almond 112-152 and switch means in circuit with said timer means for 51,463,262 7/23 Gray 112152 X initiating and terminating energization ofsaid timer 2,862,467 12/58 Passaro et a1. 112-2 X means.

FOREIGN PATENTS References Cited by the Examiner 613,447 12/60 ItalyUNITED STATES PATENTS 1 0 778,929 1/05 Webster ROBERT V. SLOAN, PrimaryExammer.

1. A SEWING MACHINE ATTACHMENT ASSEMBLY FOR FEEDING TAPE TO A SEWINGPOSITION AND FOLDING AN END OF THE TAPE AT SAID SEWING POSITION,COMPRISING: A SUPPORT MOUNTABLE NEAR SAID SEWING POSITION ON THEMACHINE; A TUBULAR MEMBER OPEN AT BOTH ENDS FOR PASSING TAPETHERETHROUGH, SAID MEMBER BEING SECURED TO SAID SUPPORT; A FLAT FINGERSECURED AT ONE END THEREOF TO SAID TUBULAR MEMBER AND EXTENDING AT ITSOTHER END BEYOND ONE END OF THE TUBULAR MEMBER FOR ENGAGING A FOLDEDFREE END OF THE TAPE; A PRESSURE PLATE SECURED AT ONE END THEREOF TO THETUBULAR MEMBER AND OVER SAID FINGER, AND HAVING A MOVABLE FREE OTHER ENDOVERLYING SAID FINGER AND SPACED INWARDLY OF SAID OTHER END OF THEFINGER TO ENGAGE THE FREE END OF THE TAPE WHEN FOLDED OVER SAID OTHEREND OF THE FINGER; A LIFTER MEMBER SECURED AT ONE END TO SAID SUPPORTAND HAVING A MOVABLE OTHER END DISPOSED UNDER SAID PRESSURE PLATE FORLIFTING SAID OTHER END OF THE PRESSURE PLATE OFF OF THE FINGER TO ENABLEINSERTION OF THE FREE END OF THE TAPE BETWEEN SAID PRESSURE PLATE ANDFINGER; ANOTHER SUPPORT MOUNTABLE NEAR SAID SEWING POSITION OF THEMACHINE; A PAIR OF PARALLEL BARS SLIDABLY CARRIED BY SAID OTHER